Re: [PATCH] drivers/net: remove network drivers' last few uses ofIRQF_SAMPLE_RANDOM

From: Glen Turner
Date: Sun May 25 2008 - 11:03:20 EST


On Fri, 2008-05-16 at 22:34 +0200, Benny Amorsen wrote:

> Perhaps it would be possible to make most types of interrupts add
> entropy, but not credit any entropy?

You need to be certain that those sources are not able
to be influenced by a hostile party, otherwise the entropy
pool can be degraded to be less random over successive samples
than its entropy score suggests. Interrupts do not meet that
test.

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